Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7228073 | Optical signal transmission device | Jun Inoue, Hideyuki Sotobayashi, Hitoshi Kawaguchi | 2007-06-05 |
| 7177543 | Method for routing optical packets using multiple wavelength labels, optical packet router using multiple wavelength labels, and optical packet network that uses multiple wavelength labels | Naoya Wada, Hiroaki Harai, Fumito Kubota | 2007-02-13 |
| 7149435 | Method and apparatus for transmitting high-frequency signals in optical communication system | Toshiaki Kuri, Ken-ichi Kitayama | 2006-12-12 |
| 7006772 | Method and apparatus for transmitting high-frequency signals in optical communication system | Toshiaki Kuri, Ken-ichi Kitayama | 2006-02-28 |
| 6912338 | Optical signal noise reduction device and method of reducing optical signal noise | Hideyuki Sotobayashi | 2005-06-28 |
| 6876817 | Method for routing optical packets using multiple wavelength labels, optical packet router using multiple wavelength labels, and optical packet network that uses multiple wavelength labels | Naoya Wada, Hiroaki Harai, Fumito Kubota | 2005-04-05 |